UNIVERSITI TEKNIKAL MALAYSIA MELAKA
The Effectiveness of ERP Implementation in Manufacturin In!ustries Report submitted in accordance with the requirements of the Universiti Teknikal Malaysia Melaka for the Bachelor’s Degree in Manufacturing ngineering !Manufacturing Management"
By
Moh! I"#an Ri$al %in Em&on ' Shamsu!in
#aculty of Manufacturing ngineering $pril %&&'
ABSTRACT
The purpose of this study is to discuss about the effectiveness of ERP implementation in manu manufa fact ctur urin ing g indu indust stri ries es.. This This stud study y cove covers rs the the defi defini niti tion on,, bene benefi fits ts and and the the implementation steps of lean tools and techniques. The data collections were divided into primary and secondary data. To run this study, a survey was conducted where the questi questionn onnair airee have been been distri distribut buted ed to the manufac manufactur turing ing compani companies. es. The survey survey consists of respondent and company detail, ERP implementation and reason of not implementing ERP. The data obtained were analyzed using the SPSS programming. The analy analysis sis shows shows that that ERP implem implement entati ation on has the effect effective ivenes nesss in manufa manufactu cturin ring g industries.
Keywords: ERP effectiveness, survey, SPSS programming
i
ABSTRAK
Tuuan !aian ini adalah membincang!an mengenai !eber!esanan sistem " ERP # yang telah diapli!asi!an dalam industri pembuatan. $aian ini merang!umi definisi, faedah dan lang!ah%lang!ah perla!sanaannya. Pengumpulan data terbahagi !epada dua iaitu data primer dan data se!under. &ntu! menaya!an !aian ini, satu !ai selidi! telah dialan!an di mana borang soal selidi! telah disedia!an dan di hantar !epada syari!at% syari!at pembuatan. $ai selidi! ini merang!umi ma!lumat mengenai syari!at dan responden, apli!asi sistem " ERP # dan !eber!esanannya, dan sebab%sebab tida! mela!sana!an
sistem
ini.
'a!lumat
yang
diperolehi
!emudiannya
dianalisis
mengguna!an perisian SPSS. (aripada analisis yang dialan!an, menunu!!an bahawa perla!sanaan sistem ini mempunyai !eber!esanannya di dalam industri pembuatan.
Kata kunci : Keberkesanan “ERP”, Kajian, Program SPSS
ii
CHAPTER 1 INTRODUCTION
1.1
Background of Study Organizations today are constantly in search for ways to achieve better business performance and sustain competitive advantages through effective deployment of resources and business processes. To stay competitive in global market, the manufacturing sector needs to improve productivity through upgrading of its primary production technology. Technology can improve overall productivity in different ways through an efficient planning and control system that synchronizes planning of all processes across the organization. Manufacturing firms must achieve a degree of innovative capability in managing a solid information system and on-going changes in supply chain needs in order to gain the advantages on competitiveness world.
Through a solid information business system, Enterprise esource !lanning attempts to integrate all departments and functions across a company into a single computer system that can serve all those different departments" particular needs like true Enterprise esource !lanning software. #or e$ample, a firm could have separate systems for purchasing, order management, human resources, and accounting, each of which would maintain a separate data source. Enterprise
esource !lanning %E!& is a system that can integrate these into a single system. 'ompanies strategy usually involve reorganization the internal operations, upgrade
plant
productivity,
improving
product
(uality,
and
reducing
manufacturing costs, but companies nowadays are focusing on supply chain strategies as the ne$t planning in organizational e$cellence. ) supply chain is a system of organizations, people, technology, activities, information and resources that related with each other in moving a product or service from the supplier to the consumer. )n E! system could potentially enhance precision across the supply chain strategy by eliminating information barrier and increase information rate by reducing information delays. *ence, there is a reason to believe that E! used could be related with ma+or gains in supply chain effectiveness.
E! is the ne$t step in a company"s evaluation that began with Material e(uirements !lanning and evolved into Manufacturing esource !lanning. Material e(uirements !lanning %M!& is well knows as a software based on planning a production process and a system which control the inventory that used to manage manufacturing processes. Meanwhile, Manufacturing esource !lanning %M! & is a method for an effective planning system of all resources of a manufacturing company. E! is a M! foundation like M! and represents as an e$tended effort that integrate standardized record keeping that will permit information sharing among different areas of an organization in order to manage the system more efficiently.
)fter the computers began to apply in materials planning for the production, E! have become the current evolution of a progression of planning tools %Michael . Okrent, //0&. E! system works essentially by integrating the whole business information, allowing organizations to manage effectively their resource of people, materials, and finance %Markus et al, ///&. The overall resources of an
enterprise can be planned, managed and integrated through E! %'hing 'how 1ang, //0&. n generally, E! can be applied to finance, human resources, manufacturing and logistic, supply chain management, and data analysis or throughout the organizational departments. %2en Tsaan 3in et al //0&.
This chapter provides an overview of the research pro+ect titled an effectiveness of Enterprise esources !lanning %E!& system in Manufacturing ndustry. The following overview of chapter will state out the effectiveness of E! system involve the product itself and its implementations throughout the organization.
1.2
Prob!" Stat!"!nt To achieve the goal of an organization, various functions such as purchasing, production, sales, human resources, finance, and accounting must work together to integrate the comple$ system of manufacturing organizations. t is critical for companies to figure out their ways of doing business whether it will fit with a standard E! package before the checks are signed and the implementations begin. This study also related with the following research problems4
a.
'urrent demand on E! implementation is growing fast, but only a few story of its effectiveness had been told out and relatively few success stories %)M esearch, 5666&.
b. The
implementation of E! is different compare to traditional
information system %'hin #u *o, //7&. ) lot of effort needs to change on system analysis and design in the software in E! system but system implementation is a challenging management issues %*olland and 3ight, 5666&.
c.
Organizations performance indicators and the implementation of the new technologies will create misalignment in the interaction between important influence of new technology %E! Effectiveness& on tasks and efficiency indicators, combined with the actual impact on an organization %3eonard-8arton 5699&.
d. There are a lot of studies about impact of E! system using interviews, case studies, and industry survey but relatively few reported on substantial performance improvement in several areas of E! system, such as the ability to provide real time information to customers, shorter production cycle, and on time completion rates %:hih 2en 'hien, //;&.
Therefore to provide solutions for the above problems, it is important to find out all the effectiveness of E! system in manufacturing industry include with its disadvantages so that this study will meet the re(uirements and satisfaction to the companies involved. 1.3
Study Ob#!ct$%!& n order to solve above mentioned problems, this study tries to achieve the following ob+ectives4 a)
To evaluate the effectiveness of E! system through various companies. n order to evaluate the effectiveness, a survey will be conducted in various companies.
b)
To determine the disadvantages of E! system through various companies. n order to complete the study on the effectiveness, it should be compared with the disadvantages to create aware on the uses of E!.
The (uestionnaire will be included with company current e$perience using E! system along its difficulties.
1.4
Sco'! and ($"$tat$on of Study The study is focus on organization performances after implements an E! system on their way of business. )n effectiveness of the E! system will be stated out troughs (uestionnaire in order to complete the study ob+ectives on E! system.
system,
E!
software,
and
supply chain
management"s
implementations %as e$ample& that involve only selected companies will be submitted. n order to find out the effectiveness of the E! system in the manufacturing industries, only one method will be used to gather the information which is statistical survey through the (uestionnaire form that been submitted to the companies.
1.)
Pot!nt$a B!n!f$t& of Study This study will give benefits to the industry and also the researcher by4
a)
The findings on the effectiveness of E! system can be used by the industries to improve their current E! software.
b)
)s a reference for academic studies related to E! system in manufacturing approach.
c&
'reate awareness of advantages on implementing E! system on various organizations.
1.6
R!'ort Out$n! This study is divided into five %>& chapters. 'hapter 5 is generally about the introduction which consists of problem statements, ob+ectives, scope and limitations of study, potential benefits of study and the study outlines. 'hapter is the literature review. 8ased on the reference gathered, this chapter will state out the effectiveness of E! system as well as the definition and the introduction to the key words which are E!, M!, E! software, :!:: program and manufacturing industries. 'hapter ? is about the methodology. n this chapter, it discussed the methodologies that were used to gather the data re(uired to support the development and analysis of the study. 'hapter 7 discussed about the results of the (uestionnaire, where the data research about the effectiveness of E! system will be analyses using the :!:: program. The data re(uired in order determining the used of E!, the effectiveness and also the disadvantages will be observed. n chapter >, conclusion and recommendation will be discussed as a development of the study on the evaluation of the effectiveness of the E! system.
1.7
R!'ort Structur!
'hapter 5
Evaluate the problems from the study, and determine ob+ectives and scope covered from the study
'hapter
iscuss about literature review that e(uivalent to the title of the study and past research e(uivalent with the study
'hapter ?
iscuss about methodology and approach that been used from beginning to the end of the study
'hapter 7
!rovides results and data from the (uestionnaire that been done. esults will be analyses and discusses includes the advantages and disadvantages of E! system in organizations
'hapter >
'onclusion and recommendation from the study that been done. #igure 5.;4 eport :tructure
CHAPTER 2 (ITERATURE RE*IE+
2.1
Introduct$on This chapter will discuss about Enterprise esource !lanning %E!& successful performance in manufacturing industries. #acts and findings on previous research in and outside the country that relevant with the problems will be discussed in order to support or to make comparison on ob+ective of study. This chapter also discusses about the past studies related to the pro+ect title with the authors, titled of the study and the findings of the studies will be discovered.
2.2
,anufactur$ng Indu&tr$!& Manufacturing means that a process of transformed raw materials into a finished goods %@alpak+ian and :chmid, //0&. Manufacturing involve in manufactured product where a human activity is a part in order to produce other products. Manufacturing is usually intended for making a mass production of products for sale to customer in order to gain profit. The effect of level manufacturing activity is critical where it can determine the standard of living of its people %@alpak+ian and :chmid, //0&. The word manufacturing comes from the 3atin word, manu factus, and it is means making by hand or use a hand to make a thing. The use of word
AmanufactureB is found in 5>0; and continue by AmanufacturingB in the year of 509? %@alpak+ian and :chmid, //0&. Enterprise esource !lanning %E!& system is important in manufacturing industry. t changes the operational planning tools and combined it with the traditional planning. )lso, combination of manufacturing activities and other business functions in manufactured company will produce a new overall E! system. Carious manufacture products typically re(uire several modules in the process that need to be implemented and integrated into a different system strategies. The uses of process mapping is important to guide through overall process activities in manufacture organizations. deally, E! delivers a single database that contains all data for the software modules that being implement in various kind of business in manufacturing, which would include all the key business processes.
2.-
Ent!r'r$&! r!&ourc! Pann$ng ERP/ 2.-.1
H$&tory of ERP
E! is a recent trend in the business today. The e$pansion of E! software starts in the year 566/Ds. *owever, it has been within the last five years that E! has really in use and seen record revenues by the software companies. n the past, E! software was used to figure a critical situation and schedule manufacturing processes %)non, //; a&. E! come out with the evolution of Manufacturing e(uirements !lanning %M!& . #rom business perspective, E! has e$panded from coordination of manufacturing processes to the integration of enterprise wide processes. #rom technological aspect, E! has evolved from legacy implementation to more fle$ible tiered client server architecture %'hin #u ho et al. //7&. The following table .?.5 summarizes the evolution of E! from 560/s to 566/s4
TI,E(INE
S0STE,
DESCRIPTION
nventory Management and control is the
combination
of
information
technology and business processes of maintaining the appropriate level of nventory 560/s
Management 'ontrol
stock in a warehouse. The activities of inventory identifying setting
management inventory targets,
include
re(uirements, providing
replenishment techni(ues and options, monitoring item usages, reconciling the inventory balances, and reporting inventory status.
Materials
e(uirement
!lanning
%M!& utilizes software applications for scheduling production processes. M! generates schedules for the
56;/s
Material
operations and raw material purchases
e(uirement
based on the production re(uirements
!lanning %M!&
of finished goods, the structure of the production
system,
the
current
inventories levels and the lot sizing procedure for each operation %Michael . Okrent et al. //7&. Manufacturing e(uirements !lanning Manufacturing 569/s
e(uirements !lanning %M! &
or M! utilizes software applications for
coordinating
processes,
manufacturing
from product
planning,
parts purchasing, inventory control to product
distribution
Okrent et al. //7&.
%Michael
.
Enterprise esource !lanning or E! uses
multi-module
software
for
application
improving
the
performance of the internal business processes. Enterprise 566/s
esource !lanning %E!&
E!
systems
often
integrate business activities across functional departments, from product planning, parts purchasing, inventory control,
product
distribution,
fulfillment, to order tracking. E! software
systems
may
include
application modules for supporting marketing, finance, accounting and human resources.
Table .?.54 Evolution of Enterprise esource !lanning Today in the year of technology demand, E! is the foundation of businesses domestically and globally. t is used as a management tool and gives organizations a great competitive advantage. E! has been recorded so successfully because companies are using E! to modify its business processes after the 1@ problem. t is believed that the 1@ agreement issue and the re(uirement are successful to advance a more productive and efficient work environment in various manufacturing industry after implement the E! system.
2.-.2
T!ory of ERP
Enterprise esource !lanning system is works by integrating the whole business information, allowing organizations to manage effectively their resources of people, materials, and finance %Markus et al., ///&. ntegrating these business practices allows different areas of the company to communicate with each other by the click of the mouse. E! also implements and automates business processes, putting them into a useful format that been standardized across the organization. f E! is been used correctly, it can be an effective management tool. The system will allows managers from all departments to look vertically and horizontally across the organization to see what process are accomplishing or not accomplishing. E! systems recorded data about historical activity, current operations and future plans and organize it into information that people can use to help derive business strategies. n the manufacturing industry, E! systems act as the 7MDs method which are AMan, Money, Materials and MachinesB %@alpak+ian and :chmid, //0&. This E! system will integrate these four aspects of business together, and provide a potential value to the company. 2.-.-
D!f$n$t$on of ERP
Enterprise esource !lanning systems can be defined as a unified system database for the various system modules that all data and processes within organizations had been integrated by using multiple components of computer software and hardware in order to achieve the integration. t is also a software solution that addresses the enterprise needs taking the process view of an organization, and in term of industry Enterprise esource !lanning is a set of activities that support by multi-module
application software that help a manufacturer or other business manage the all the parts of its business. This bill of material processor can give an opportunity to the communications between previously different groups into a single entity with a common understanding of the product to be produced %obert F Cokurka et al, //7&. Enterprise esource !lanning system works essentially at integrating the whole business information, allowing organizations to manage effectively their resource of people, materials, and finance %Markus et al, ///&. The overall resources of an enterprise can be planned, managed and integrated through E! %'hing 'how 1ang et al., //0&. n generally E! can be applied to finance, human resources, manufacturing and logistic, supply chain management, and data analysis %2en Tsaan 3in et al., //0&. Enterprise esource !lanning systems are comple$ to be defined and dispersed within and between organizations where in a sense the E! system are elusive in other meanings the system are in constant flu$ and to be found everywhere and nowhere %:hih-2en 'hien et al., //;&.
2.-.
I"'ortanc! of ERP
The benefits of implementing an Enterprise esource !lanning system are endless. #irst and most important, all E! systems are focused on the customer and end results. This means better products and services produced and delivered (uickly. E! allows open communication among suppliers, vendors, customers and all other facets of the business.
:econd, E! can put a company with a standard set of business practices across the whole organization. 8y doing this, it allows each department within the whole organization to operate in the same way. Each department whether in Malaysia, 'hina or other continent will hire the same, order the same and run the operation with a same style according to business needs. Carious aspect of E! implementation can be study academically intended to record the impact of E! system and the challenges of the implementation pro+ect itself. The reason for implementation is based on the organizational inclinations and regarding to change where the focus of implementing the E! is mainly on the realization for the functions or importance in the E! system. Enterprise esource !lanning also can improve business performance to the organizations by implement an efficient planning and control system that synchronizes planning of all processes through organizations %:hih2en 'hien et al., //;&. :olid information systems %:& are re(uired to competitiveness business that it will aligned with business processes. E! system can give valuable information as well as enhance operating efficiency by changing the company strategies from developing in-house information system to purchasing application software %:hih-2en 'hien et al., //;&. Enterprise esource !lanning can streamline the business operations and play a role as a key of successful ingredient to gain competitive advantages within the organizations %Guckerman et al,. 5666&. The systems also can help companies by integrating their business functions into a unified and integrated business process. t will create e$cellent if companies implement more enterprise based systems throughout their organizations %ke '. Ehie et al. //>&.
n summary, E! application can help organizations in various ways of business aspect. The common importance of E! that can be conclude are it helps in reduction of organization"s operating cost can be reduced, integrates all parts of an organization, increases the efficiency of operations as a result of the integration, integration on information systems which enables free flow connection of information across the organization and enables consolidation of different software within the organizations. 2.-.)
D$&ad%antag!& of ERP
There are several disadvantages of Enterprise esource !lanning that can be discussed in this study. The disadvantages of E! are important to create a comparison between the advantages in order to show the significant differences occurred before and after the implementation of the system. #irst is time consuming, followed by e$pensive, conformity of the modules, and features and comple$ity. Time consuming E! implementation is longer and can take from si$ months to several years to complete. The E! software functions itself will usually be available in used appro$imately in every si$ month %Michael . Okrent et al //7&. 'ompanies that install E! do not have an easy time to gain the benefits of it. 'ompanies usually will change their ways of business and the ways people do their +ob after implement the E! system and this will take times. The important thing is not to focus on how long it will take. t is effective to understand the potential benefits and how to use wisely the system in order to improve the business itself because E! implementation will take almost between one to three years in average %:tevenson, //;&.
E$pensive E! are e$pensive to implements. The price includes with general information technology %T& infrastructure %Michael . Okrent et al //7&. 'ost may be change from thousand dollars to millions and the business process reengineering cost in infrastructure may be e$tremely high and create result in budget overrun. t is include with the hidden cost of E! implementation that usually a company will face in the following areas :tevenson, //;&4 5. Training Training fees for the workers are high because of difficulties of implementing comple$ as E!. . ntegration and testing *idden cost in E! such as testing the links between E! package and other corporate software links. ?. ata conversion ata conversion like moving the corporate information such as customers and supplier record, products design data, and etc. will costs money. 7. ata analysis #or an analysis purpose, the data from the E! system must be combined with the data from e$ternal systems. This will charge as the cost of a data warehouse in the E! budget.
>. 'onsultants 'onsulting fees will be charges and usually become higher if it involve outside consulting firm besides of own vendor"s consultant. 'onformity of the modules The architecture and components of the selected system should conform to the business processes, culture and strategic goals of the organization. ) one reason for E! implementation to fail is the software itself does not fi$ the one of important business processes for a company :tevenson, //;&.
#eatures and comple$ity E! systems are not easy to be defined and are comple$ and dispersed within and between organizations because of its system modules and comple$ity of implementation. Each of the position involves in E! system in organizations said that these system are elusive where the system itself are in constant instability %@oes 8oersma et al. //>&. =owadays, some of the mid average companies having difficulty on the performance of E! system that cause them lack of effective evaluation features and models of the system %:hih 2en 'hien et al. //;&. E! system may have too many features and modules so the user needs to consider carefully and implement the needful only.
2.
ERP ,odu!&
MRP/CRP
BOM B!""#
%$SALES &
MASTER
MARKETING
SCHEDULING
ERP
SHOP LOOR
Ma'(!a"#)
PURCHASING
CONTROL
LOGISTIC
ACCOUNTS PA*ABLE
#igure .74 #igure of Modules involve on E! implementation #igure .7 shows an e$ample of the modules that help E! implementation in the organizations. These following modules will be discussed in term of its definition, description and the relationship with E! system. 2..1
,at!r$a R!3u$r!"!nt& Pann$ng
M! :ystems were first been used by Heorge !lossl and Foseph Orlicky in the late 560/s. Material e(uirements !lanning %M!& is software based on planning a production process and a system which controls the inventory that used to manage manufacturing processes. )n M! system is used to meet three ob+ectives which are to maintain the lowest possible level of inventory and to plan manufacturing activities, delivery schedules and purchasing activities and lastly to ensure materials and products are available for production and delivery to customers . 'ompanies need to control the types and (uantities of materials which they purchase, plan which products are to be produced and in what (uantities then ensure that they are able to meet current and future customer demand, all at the lowest possible cost. M! is used by many
organizations as a tool to deal with these problems. This applies to items that are bought in that go into more comple$ items. 2..2
B$ of ,at!r$a& BO,/
) bill of materials %8OM& is used to describe the parts list of components such as screw, bolt and nut that needed to complete a profitable product. 8OMs are listed in hierarchical order with the top level representing the sub-assembly or end-item. The 8OMs that describe the sub-assemblies are referred as a Modular 8OMs. Modular 8ill of Material %8OM& is a vital part that defines the product structure for an end-item. t also defines the parts, documents, component materials, and engineering drawings in order to complete a sub-assembly. 8esides sub-assemblies, a 8OM also can define products in the Engineering 8ill of Material which called designed product or in the :ales 8OM as they are ordered, Manufacturing bill of material as they are built in the industry, and as they are maintained which is :ervice 8OM. These different types of bills of materials are depending on the business need and use which they are intended to use that are available in the E! system features. 2..-
Purca&$ng
!urchasing is defined as a business or organization attempt to purchase goods or services in order to achieve the goals for the enterprise. )lthough there are several organizations attempt to set standards in the purchasing process, it will create greatly different between the organizations.
2..
(og$&t$c
3ogistics acts as a managing system that control the flow of goods, energy, information and other resources like products, services, and people, from the source of production to the marketplace in order to meet the re(uirements of consumers. 3ogistics management contribute to the supply chain system which plans, implements and controls the efficient, effective forward and reverse flow and storage of goods, services and related information between the point of origin and the point of consumption.
2.)
ERP I"'!"!ntat$on 2.).1
SAP4R-
:)! I? is a well known client server based application, that utilizing using a three tiered model. t includes a presentation layer for a client that can connect with the user. The application of this layer houses include integrate all the business-specific logic and the database layer records as well as storing the information about the system including transactional and configuration data %)non, //; b& The :)!I? can be used either alone or combined to form business solutions. t functionally suitable for all kind of standard business of all enterprise includes manufacturing firms %1. 1usuf et al. //7&.
#igure .>.54 :)! product implementation process data diagram. #igure .>.5 shows the e$ample of one product implementation of process pro+ect plan. The :)! implementation process is made up out of four main phases which are4 #irst phase4 The pro+ect preparation where a vision of the future-state of the :)! solution is being created.
:econd phase4 ) sizing and blueprinting phase where the solution stack is created and training is being performed. Third phase4 ) functional development phase. #ourth phase4 ) final preparation phase include with the last tests are being performed before the actual go live. #or each phase, the vital activities are addressed and the deliverables or products are e$plained. The process-data diagram above, gives an overview of all of these activities or processes and deliverables. The four gray bo$es depict the four main implementation phases, which each contain several processes that are in this case all se(uential. The bo$es at the right under the :)! implementation pro+ect plan show all the deliverables and concepts that result from the processes. 8o$es without a shadow have no further sub-concepts. 8o$es with a black shadow depict comple$ closed concepts. 8o$es with a white shadow depict open closed concepts, where the sub-concepts are e$panded in greater detail. The lines with diamonds show a relationship between concepts %)non, //; c&. 2.).2
SAP R4- $"'!"!ntat$on on Ro&5Royc!
olls-oyce before E! %1. 1usuf et al. / /7& olls-oyce used over 5>// systems before the E! pro+ect was started and many of the system was developed internally by olls-oyce itself over the last two decades.
These legacy systems were e$pensive to operate and difficult to maintain or develop. They did not provide accurate, consistent and accessible data that was re(uired for good and timely decision-making. The ma+or
concern is about the lack of performance assessment such as delivery performance, and (uality metrics.
These old tradition systems can not relate themselves fully to a modern manufacturing environment. :ome of the legacy systems were so old and the problem of the year /// compliance problems %1@& always occurred within the organizations which results work within olls-oyce functionally orientated and various departments worked in isolation.
The last ma+or manufacturing system to be developed and implemented by olls-oyce was ME3=. The ME3= system stands for mechanized evaluation of resources, logistics and inventory where the system was basically a scheduling system which ran same as M! system principles.
The system was developed in the years of 569/s. )lthough it was capable to handle all the process data within organizations, it was prone to manual manipulation. The e$ample of the system difficulties is it lack of communication between individual sites. ME3= often had difficulty communicating
with another
manufacturing
system named
8:
%inventory based instructing system& in the olls-oyce 'ompany. 8: was an older manufacturing system that was used at the 8ristol and )nsty facilities.
'orporate cost accounting %'')& was used to financially monitor transactions, which covered pipeline inventory and inter-site transport. This additional system was implements because of 8:"s work in progress was often transferred between sites and could not be tracked accurately causing inventory and stocks take problems to be occurred.