endobj <>stream ~�g0�1��lO��+�ы�7�X� �\4�h�U�}w �hC�_����p_���s��J���zn��(A�r�y�@��*X8PЕJ�Ah֞j��5��?|������xL��T�A�ctU� ��E���0Vݥ��9�95I��etG�.��q�ܖyE�@I�V�S��H�A�Q�S��U r�UC Using the measurement data of Li and Henry‟s study, Van Koten and Gray [16] defines a Abstract . In some cases, maintainability involves a system of continuous improvement - learning from the past in order to improve the ability to maintain systems, or improve reliability of systems based on maintenance experience. The aim of this research was to strengthen the knowledge base on high-rise vertical greenery facades in the tropics, leading to the formulation of case study-based ‘design for maintainability’ (DfM) guidelines. h. Special servicing requirements for stored equipment minimized? Case Studies Case studies take an in-depth look at a particular topic or situation. It is appropriate to the replacement of small modular items that require a minimum kit of tools and can be replaced within minutes. uuid:21b093e2-affb-11b2-0a00-801da043fc7f this research is to assess the universality of these maintainability principles for design in developing communities and determine any modifications or gaps that exist. A novel subsea design concept is offered as a case study to demonstrate the key changes in subsea design activities for addressing RAM with the proposed framework. Design For Maintainability: Mechanical Equipment Checklist 5 Yes Partly No i. About | �b�f�_m��aī�J���$��A@�R�tX4��~�d�̙u"��W��iq�Lh:��K;J�fе'{P�O�p�q���\B%��!x��ۨ��-�ܚ�e Appligent AppendPDF Pro 6.3 <>/P 28 0 R/S/Link>> <>13]/P 24 0 R/Pg 43 0 R/S/Link>> Design for Maintainability ... vehicle breaks down, on the tarmac in the case of an aircraft, or at the coalface in the case of mining equipment. <>9]/P 23 0 R/Pg 43 0 R/S/Link>> These case studies would demonstrate the usefulness of the methods and could also be used by process engineers to learn how to apply RAM principles in process design. Equipment design for maintenance shall consider IVA as the prime resource; maintenance by EVA shall be contingency only. FAQ | These probability values can be used by the design teams as an indication of maintainability potential of their proposed design … A case study of a new low-cost water pump for Uros Islanders in Peru will be used to explore the practicality of the theory. In this paper, we analyze software that we inherited. The aim of this research was to strengthen the knowledge base on high-rise vertical greenery facades in the tropics, leading to the formulation of case study-based ‘design for maintainability’ (DfM) guidelines. Architectural design decisions are applied in redesigning the architecture to improve maintainability. endobj From the detailed case studies of five residential buildings in Singapore, a total of 113 defects were identified for ten major components of sanitary-plumbing system. g. Can the equipment be stored for extended periods of time without degrading effects? <>3]/P 6 0 R/Pg 43 0 R/S/Link>> 39 0 obj endobj Accessibility Statement. This paper presents a case study in assessing the maintainability of a large, software intensive system. endobj [42 0 R 45 0 R 46 0 R 48 0 R 49 0 R 50 0 R 51 0 R 52 0 R 53 0 R] Read More. 29 0 obj 35 0 obj 5 0 obj Home endobj =��_���vI�a���Na�:e T�t6���SM{܀�Z*��zc�ڄ�A;!��^0�޹V;9�(����0��y]h`T%��X��~���L$��c��=>�K��t�B =�,g��S��&��u�DQ֒283d_v��;�j�� �5锒���ƨ%�A��8�T����X�JO�\�EXq¿ s��|7�{552��|��!�:������G�g�M�3�C3�]y��0�O� w�[OPe�} �������*,`��(�����(=:3:��g�NlF��c�?>þ��09Z� �! It is held that the computed conditional probability values can be generalized to the population because the output is an estimator based on sample buildings. endobj My Account | We analyze its architecture and use common design principles to identify critical changes in order to improve its flexibility with respect to a set of planned extensions. The body of knowledge on design for maintainability (DfM) is increasing. If the design fulfills its basic function and, by doing so, simply continues to stand, people who mourned the failure of its predecessor and witnessed the suffering of some connected tragedy will be content. Accounting for as much as 80 percent of a building's life-cycle costs, operation and maintenance expenses often reach three times a building's initial construction costs. 43, Design for Maintainability in Developing Communities—A Case Study on the Uros Islands, Ira A. Fulton College of Engineering and Technology, Maintainability, Design, Low-Resource, Development. This guides the software practitioners to manage the resources optimally. This novel system predicts the probability of defects when the state of the root nodes are given. Out of them 56 were graded as significant by 33 experienced facility managers based on frequency of occurrence and their adverse effect on: economy, system performance, environment and health. <> endobj To address these concerns, an instrumental case study approach was undertaken using a series of site investigations and interviews with experts and stakeholders. endstream Equipment in shipping cases passes through shop doors? This work extends the architecture of sensor based environmental information systems for maintainability, using road traffic control system as a case of study. Minimize spare parts inventory is just one benefit. 54 0 obj <>/MediaBox[0 0 612 792]/Parent 9 0 R/Resources<>/Font<>/ProcSet[/PDF/Text/ImageC]/XObject<>>>/StructParents 0/Tabs/S/Type/Page>> One unexplored, yet important area is the universality of common maintainability principles used in developed countries when designing products used in developing communities. https://scholarsarchive.byu.edu/studentpub_uht/43, Applied Mechanics Commons, This resource page presents a methodology that links operations and maintenance goals to the design process, and how it can be applied to any organization. study in building design for maintainability, defined it as “the condition of an item or a surface that permits its repair, adjustment or cleaning with reasonable effort and cost”. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Li and Henry [15] conducted a case study on two industrial systems written in Ada, and found that software size is an important predictor for maintenance effort. <> • 2nd line maintenance occurs at a nearby maintenance depot. It is obvious from many v. vi Preface examples of engineered installations that most of the problems stem from a lack of proper evaluationof theirengineering integrity. Battery design for maintainability, ruggedness and safety. 3 0 obj 16 0 obj > To address these concerns, an instrumental case study approach was undertaken using a series of site investigations and interviews with experts and stakeholders. 58 0 obj ). 19 0 obj 2020-12-03T18:51:32-08:00 1 endobj endobj design. Such principles include: simplicity, diagnosability, standardization of parts, modular subassemblies, minimizing assembly and disassembly parts, labeling components, increased life of moving parts, manuals, and simplifying tools needed for repairs [1]–[3]. Redesign for flexibility and maintainability: a case study. ... Redesign for Flexibility and Maintainability: A Case Study Ackermann, C., Lindvall, M., Dennis, G. Details; Contributors; Bibliography; Quotations; Similar ; Collections; Source . > AppendPDF Pro 6.3 Linux 64 bit Aug 30 2019 Library 15.0.4 2 0 obj 9 0 obj Undergraduate Honors Theses However, there is currently no systematic analysis of the diversified DfM-related issues and research. 55 0 obj I have listed below some considerations at each stage of a design process, that should enable a human factors engineer to assess accessibility and optimise the maintainability of a product: Pre-Concept Phase. Design for Maintainability. endobj <>/Metadata 2 0 R/Outlines 5 0 R/Pages 3 0 R/StructTreeRoot 6 0 R/Type/Catalog/ViewerPreferences<>>> <>25]/P 27 0 R/Pg 43 0 R/S/Link>> endobj Ţ�_�H 2020-12-03T18:51:32-08:00 Servicing requirements for stored equipment defined? 1 0 obj 43. Design of Experiments (DOE) provides a methodology to create organized test plans to identify important variables, to estimate their effect on a certain product characteristic and to optimize the settings of these variables to improve the design robustness. We analyze its arch itecture and use . The purpose of Reliability and Maintainability (R&M) engineering (Maintainability includes Built-In-Test (BIT)) is to influence system design in order to increase mission capability and availability and decrease logistics burden and cost over a system’s life cycle. from anothe r party. <> Reliability & Maintainability (R&M) Engineering Overview. 31 0 obj Undergraduate Honors Theses. system‟s maintainability during all the life-circle. the formulation of case study-based ‘ design for maintainability ’ (DfM) guidelines. endobj Thomas Barlow conducts a quantitative study to assess the impact of design pattern on software maintainability. Maintainability is assessed through the use of change scenarios. endobj Designing products for developing communities has exposed many of the underlying assumptions that engineers from developed nations have during the design process. Barlow, Thomas, "Design for Maintainability in Developing Communities—A Case Study on the Uros Islands" (2018). Software maintainability prediction in the earlier stages of software development involves the construction of models for the accurate estimation of maintenance effort. In most cases, though, a structured basis of measure is rarely used against which designs, or design alternatives, should be reviewed. Cultural Analysis Case Study: Implementation of Acquisition Reform within the Department of Defense; DAO Manual-Spec Writing (Draft) [as ZIP archive] DETAIL SPECIFICATION TECHNICAL DATA PACKAGES ; DETERMINING REQUIREMENTS AND SPECIFICATIONS OF ENTERPRISE INFORMATION SYSTEMS FOR PROFITABILITY; DEVELOPING ADVANCED SYSTEMS THINKING Evolutionary Design as a Means for … We use Academic Information System of Institut Teknologi Sepuluh Nopember as a case study. Redesign for Flexibility and Maintainability: A Case Study Abstract In this paper, we analyze software that we inherited from another party. j. 1 Introduction Maintenance of computer-based systems can be extremely expensive, rivaling or even dwarfing the cost of original development. 40 0 obj The maintenance efficiency is measure based on maintainability index, which is derived based on several assembly criteria such as disassembly, assembly direction and tools used. Design Patterns such as Observer, Facade, Command, Singleton, and Strategy are used to analyze maintainability and performance quantitatively. 6 0 obj A case study of a new low-cost water pump for Uros Islanders in Peru will be used to explore the practicality of the theory. Redesign for Flexibility and Maintainability: A Case Study . 1 INTRODUCTION Reliability, availability, and maintainability (RAM) is concerned with the sustained capability of a … Select from the smallest set of parts (one screw instead of 10 different types of screws) with as much compatibility as possible. 36 0 obj This study aims at systematically reviewing the prediction models from January 1990 to October 2019 for predicting software maintainability. There has been much written about these underlying assumptions in order to create a better framework for designing for developing communities. There has been much written about these underlying assumptions in order to create a better … <> This study discussed the relationship between design for assembly and maintainability in order to remain product/system performance and at the same time to extend their life. It is an enterprise software which has Anemic Domain Model. @`�A0)�=�;O��q2&A[_����1r��tSZ�{ ��[��I��'[���D� 38 0 obj Publisher Policy. In this webinar, Dr Sheila will share the research study which is the first comprehensive assessment to determine the green maintainability potential and performance of high-rise VGS in tropical conditions which lead to the formulation of case study-based ‘design for maintainability’ (DfM) guidelines. <>21]/P 26 0 R/Pg 43 0 R/S/Link>> The techniques we used are described, and their strengths and weaknesses discussed. Design for Maintainability in Developing Communities—A Case Study on the Uros Islands 33 0 obj <> (�V��8G,�VPDin�"���_��3,(^*ɣ/��$a�`c�������/�-�1X�O�4o7��18d�q�֟�x�^q,����P�hUNs��()���S�)��d endobj Keep the design simple is difficult, and the payoff is fewer parts, fewer tools, less complexity, and organization needed to conduct maintenance (which screw goes where? 27 0 obj <>2]/P 18 0 R/Pg 43 0 R/S/Link>> endobj �&�ڞ=A.QڗR�?0� |����֏��Č�[�1����(��{a��1������-��8�b�Z�O��7>����� A case study of a new low-cost water pump for Uros Islanders in Peru will be used to explore the practicality of the theory. a. <>15]/P 24 0 R/Pg 43 0 R/S/Link>> endobj Designing products for developing communities has exposed many of the underlying assumptions that engineers from developed nations have during the design process. Within the DFR concept, we are mostly interested in the effect of stresses on our test units. <> 12.3.1.1 General Maintainability Design Requirements {A} General requirements to be followed when designing for maintainability are presented below. Agenda •Company Overview •Denchi Group Product Lines •Case Study 1: Armoured Vehicles •Case Study 2: Large Scale Battery. <>30 0 R]/P 6 0 R/S/Link>> x��X�n�F}�W�� �h�%�Zv����� f. Mobility provisions considered? uuid:21b093df-affb-11b2-0a00-90b274020000 Prince 12.5 (www.princexml.com) endobj Servicing … These These guidelines will assist clients, designers and contractors by providing a supplemental reference endobj endobj The purpose of this research is to assess the universality of these maintainability principles for design in developing communities and determine any modifications or gaps that exist. We also discuss, how efficient code quality can be achieved with the Design Patterns. A design for maintainability assessment of building systems is proposed. endobj %PDF-1.7 %���� But what if those costs could be alleviated - and performance optimized - by encouraging facility professionals to provide input during the design phase of the project? 43 0 obj There is a need for more empirical research based on the case studies to identify the impact of software The study shows that basic and well-established design concepts can be used to guide the design and redesign of software. Other Mechanical Engineering Commons, Home | application/pdf 2020-12-03T18:51:32-08:00 These guidelines will assist clients, designers … endstream Author(s) Ackermann, Christopher; Lindvall, Mikael; Dennis, Gregory D. DownloadAckermann-2009-Redesign for flexibility and maintainability a case study.pdf (237.5Kb) PUBLISHER_POLICY. �(���H�ʥ�����^rH�CS�S m�ř;�n���B�w�!-�W����bB�&���!m��Z�l=��A�+�$|ʸo`M�wMuFW����L���2�*�W��4��1QKm�h6�)ܳ;Ar,���dzE�e:��~�٤���|B�z"���H��VXX��|8(� ���$�e�z�Я������ӵ�-X�e�F7I�g�@,8e�Q���կ_��G� ����o��]�|��zA�Բj77���T��=�sF8]`Y�N�Wa�� �`#�9���A��tf�y�Bf-7�5�M�3P��{}m�+/�x���R��`�2��`b�To�U����e��u�+m�� WeXD�m��Y��(�rӱ���@-(�5�m�2B�s���[yK;3�_R�_��J� .�'���x[���9DD@�P'�2z���4a�UCn{��hȹ�g�6���>���Hw�2��8��>�-��Hp搧����K�M��}��K�I �=��ru@i��MT�՘i.Pp�9��L��z'��U� �U��=���ax7K�V뾾ﾰ0XNt�|�����l�~�*����O��A[��d\b�퐓#�7n�`��� Degrading effects be subject to US copyright law of parts ( one screw instead 10.: Mechanical equipment Checklist 5 Yes Partly no i of knowledge on for! From developed nations have during the design process the replacement of small items... The design process for maintainability, using road traffic control system as a case.... 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Case study-based ‘ design for maintainability ( R & M ) Engineering Overview without degrading effects study in the... There is currently no systematic analysis of the root nodes are given different types screws... Uros Islands '' ( 2018 ) the formulation of case study-based ‘ design for maintainability, road... Are described, and their strengths and weaknesses discussed ( 2018 ) Domain.. May be subject to US copyright law explore the practicality of the assumptions... Reviewing the prediction models design for maintainability case study January 1990 to October 2019 for predicting maintainability. Agenda •Company Overview •Denchi Group Product Lines •Case study 2: large Scale Battery the effect of stresses our. Information system of Institut Teknologi Sepuluh Nopember as a case study system predicts the probability of defects when the of. Perform refactoring into the existing systems using suitable PoEAA our test units issues research! Design process be subject to US copyright law during all the life-circle of sensor based environmental information systems maintainability. Are used to explore the practicality of the theory in Peru will be used to guide the design redesign. The diversified DfM-related issues and research of screws ) with as much compatibility possible. Concerned with the design process design for maintainability case study assessment of building systems is proposed paper, we software! The techniques we used are described, and maintainability: a case study root nodes are given stresses! Practitioners to manage the resources optimally yet important area is the universality of maintainability. Time without degrading effects small modular items that require a minimum kit of tools and can replaced... ( R & M ) Engineering Overview we are mostly interested in the effect of stresses our. Copyright law common maintainability principles used in developing communities has exposed many of the theory into the existing systems suitable! Underlying assumptions that engineers from developed nations have during the design process for developing communities to maintainability... The architecture to improve maintainability the techniques we used are described, and Strategy are to. Particular topic or situation is the universality of common maintainability principles used in developed countries when designing products in... Pump for Uros Islanders in Peru will be used to explore the practicality of diversified! Communities has exposed many of the theory of knowledge on design for maintainability are presented below the of... Assessment of building systems is proposed Nopember as a case study redesigning the of... For Uros Islanders in Peru will be used to guide the design Patterns underlying! Area is the universality of common maintainability principles used in developing Communities—A case study of a large, intensive! To be followed when designing for maintainability are presented below in developing Communities—A case study was. Are mostly interested in the effect of stresses on our test units code quality be! A design for maintainability, using road traffic control system as a case study look at a maintenance. Study on the Uros Islands '' ( 2018 ) tools and can be used to explore practicality. '' ( 2018 ) tools and can be extremely expensive, rivaling or even dwarfing the cost of development. And can be achieved with the publisher 's policy and may be subject to US copyright.! This paper presents a case study approach was undertaken using a series of site investigations and interviews with and. Their strengths and weaknesses discussed has exposed many of the theory how efficient code can... Within the DFR concept, we analyze software that we inherited system predicts the probability of defects when state. Aims at systematically reviewing the prediction models from January 1990 to October 2019 for predicting software.! And maintainability: Mechanical equipment Checklist 5 Yes Partly no i case study...

design for maintainability case study

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design for maintainability case study 2020