IDEF Manufacturing and Supply system


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IMSE 2030 - Fundamentals of Systems Design and Analysis – Assignment 2 Complete below and produce ONE report to include all parts. PART 1. Using IDEF0 methodology, draw a complete model to specify an organization of your choice (industrial, service, or public). This model should specify the organization down to its 2nd level of decomposition (i.e., include function blocks at the Axx level), taking into consideration of all the aspects, such as those identified in the FIVE categories in a typical industrial system. Follow strictly the cross-checking steps to ensure the integrity of your model: 1. 2. 3. Specify and Cross-Check a function block: for each of the Inputs, cross-check for its related Output(s); for each of the Outputs, cross-check for its related Input(s); for each of the Mechanism and Control, check what it is used for. Decompose, if needed, to 3-5 next level functions. For each of these sub-level functions:  Carry out the Specify and Cross-Check as outlined in (1)  Establish relationships amongst these functions through flow of Inputs, Outputs, Controls and Mechanisms  Cross-Check Integrity of Decomposition: lower-level definition should represent EXACTLY its higher level function. Repeat step 2 until the required level of detail is reached. You should provide a textual description of the overall system/organization of concern, as well as for each of the function blocks presented in the model. PART 2. From your IDEF model of the organization, pick up two related functions. Draw an ActivityCycle-Diagram to illustrate how the dynamic interaction takes place. PART 3. Explain, with flowchart if necessary, how simulation process can be logically carried out to estimate the system performance in terms of average lead time, and/or average resources utilization. Then, for the ACD model of Part 2:   Assign time elements involved (such the average and distribution times of arrival, and machining/process/service times) Carry out a simulation, physically, and estimate the values related to system performance such as the mean throughput and/or the average waiting times. Length and Structure: No more than 20 pages (1.5 spacing and including figures). Please properly “section” your report, so that it follows the format of a typical technical report. Date of submission: To be decided with class. Individual Assignment Evaluation Sheet Assignment No.:________2____________Name of Student:_________________________________ Evaluation Criteria Understanding of complete functional modelling of industrial/service/public systems Use of IDEF modelling: able to use the methodology correctly (top-down approach, meaningful decomposition of functions, proper specification of inputs, outputs, controls and mechanisms and flows) Understanding of the functional structure of a industrial/service/public system: the completeness of the specification of a system in the industrial, service, and public sectors. Integrity of mode: Specification correct for ALL functions and at ALL levels. Cross-checking properly carried out as required. Understanding of dynamic flow and interaction Use of Activity-Cycle-Diagram modelling: able to use the methodology correctly Understanding of the dynamic logics: understand the meaning and dynamic logics and explain how this can be used to accomplish discrete simulation of the operation of a system. Use of ACD to carry out a simple simulation: values such as mean waiting times, etc., correctly estimated. Contents and Quality of Presentation  Good introduction and meaningful background information  Clear argument, logically structured and easy to follow  Good illustrations  Sufficient support material/examples/references  Logical conclusion Score (40) Class Submission (20) TOTAL (100) Comments (30) (10) General feedback ...
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School: UC Berkeley



Fundamentals of System Analysis and Design
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System analysis and design
IDEFO manufacturing and supply system
IDEFO model is a part of system analysis and design. System analysis and design deals
with the planning of information systems development, whether it is an industrial system, service
system or public system, with the intention of enhancing it through better procedures as well as
deepened comprehension of the system. Therefore, the overall aim of system analysis is to come
with an efficient design that is oriented towards improving an organizational productivity
through enhanced performance (Endsley, 2016). To do this, there are several approaches used
like the rapid flow approach or the top down approach that analyses the system in action, the
relationships among the subsystems and their contribution to meet a shared goal. Thus, IDEFO
helps organization in the execution of continuous improvement. IDEFO specifications are usually
converted to the actual delivery mechanism.
IDEF model for Beacon’s closet
IDEFO is a functioning modeling methodology utilized in the description of
manufacturing functions that are geared towards the incorporation of information systems to the
business processes using software development (Browning, 2018). The organization chosen for
system analysis using the IDEF methodology is an industrial one and in this case it’s the Beacon
Closet. Beacon Closet is located at an ideal street at Williamsburg where initially foot traffic was
considered rare but is not the case at the moment. It deals with a variety of clothes ranging from
both male and female ware and even children clothes. Due to its varied stock items, it became
inevitable to have a management information system that could keep track of the inventory and
as well project the profit and loss of the store.
A manufacturing enterprise system is created from different models according to IDEFO.
The open system architecture has it that at least four viewpoints have to be considered, that is,
function, information, resource and organization. In the real world, models from each viewpoint
are built individualistically using different methodologies and in different situations or



expectations. For these reasons there are many times incompatibilities issues which are followed
by problems like repeated capturing of same information which is really time consuming, effect
of changes of a model in relation to another may not be easily perceived, interrelated model may
not be compatible resulting in complete overhaul and model maintenance may be impossible.
Due to these challenges CIMOSA (CIM Open System Architecture) a comprehensive modeling
methodology IDEF and a supporting tool are the official recommended system analysis and
design mechanism (LingZhi, Leong & Gay, 2016).

IDEF Diagram for Beacon Closet



The IDEF modeling for Beacon Closet consist of generic, partial and particular layers. In
addition, there are function, information, resource and organization views which comprise of
requirements definition, design specification and implementation description. The development
route for step by step system development may either adopt the waterfall system development
life cycle model or the top down approach model.
In the top down approach model, the IDEFO is usually developed first and other parts
added progressively. The details are added in accordance to the function requirements or
resource requirements that is the human resource or other organization elements. In the end, the
system’s functional description can be attained through abstraction. Besides, there is the
sequential realization of complete system description while maintaining compatible models with
the use of similar functions (Gupta, 2017).
Therefore, by building the IDEFO model first, relevant details are collected through it.
This ensures that models resulting from the process are compatible with IDEFO model (Endsley,
2016). The structure of model is ignored and only the function-related details ...

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