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Illinois Institute of Technology. CS487 Software Engineering Midterm Review David Lash. What it covers. ~2 hours long A mixture of concepts and problem solving Covers material from the beginning of the course through this 7/3/01. What it covers. 1. What is SE Softw Lifecycle models - PowerPoint PPT Presentation
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CS48711-1/31
Illinois Institute of Technology
CS487
Software Engineering
Midterm Review
David Lash
CS48711-2/31
What it covers
~2 hours long A mixture of concepts and problem solving Covers material from the beginning of the
course through this 7/3/01
CS48711-3/31
What it covers
1. What is SE Softw Lifecycle models Various models (waterfall, prototype,
incremental, sprial evolutionary concurrent)– What are the advantages of …– What are the weaknesses …– Which model would you use if ...
2. Requirements -> Requirements process, FAST, QFD, partitioning,
– What is QFD? What is FAST
CS48711-4/31
What it covers
3. Requirements II - several modeling techniques, use case, system context diagrams, Partitioning
– Data Modeling - Entity-Relation - Data objects and their relationships
Information flow diagram - Data flow diagrams - how data transforms in system- how functions transform data
– Control Specifications - State diagrams - how system behaves as result of external events .
Test example list HW
CS48711-5/31
What it covers Consider the problem of designing the software system for an
automatic teller machine (ATM). – The user puts his or her card into a slot, enters a four-digit PIN (personal
identification number), and can then perform the following operations on different bank accounts: d
deposit any amount, withdraw funds (the account may not be overdrawn), determine account balance, or transfer funds between two accounts.
– Design the ATM system using a transaction-oriented analysis. Draw a data flow diagram (Level-0 and Level-1). Note: in this question you do not have to specify (e.g., using pseudo-code) processes, data flows, external entities, stores and modules
CS48711-6/31
What it covers
Customer
CardReader
Bank
Printer
CashDispenser
ATM
Commands & Data
Card Data
ResponsesCommands & Response
Amount
Line
CS48711-7/31
What it covers
Customer
Card Rdr
PINValidation
PIN Number
PIN Prompt
Card Data
MenuSelection
Menu
Selection
Valid PIN
Temp UserData
Card Data
DepositCash
Customer
WithdrawCash
TransferCash
Inquire
Temp UserData
BankDatabase
Card DataInq
Account
Printer
Acct Stat
Acct DataCust Info
Acct Data
TxF Cmd
LineWidthdrawal
Prompt
Deposit
Printer
CashDispenser
Line
Acct Info
Amount
Prompt
Line
Amount
Temp UserData
Card Data
Acct InfoBank
Database
Debit Cmd
Card Data
Credit CmdAmount
Customer
Amount
Prompt
CS48711-8/31
What it covers
4. More Requirements - Decision tables,– Like HW
5. Design concepts - abstraction, cntrl hierarchy, struct programming, info hiding, coupling, cohesion
– What is the problem with content coupling. – Suppose Module X and module Y both access the
same global structure, what type of coupling is it? – List all types of module cohesion. For each type of
module cohesion provide its description and an example of a module exhibiting that kind of cohesion.
CS48711-9/31
What it covers
6. Architectural concepts - various types of architecture, DF oriented design
– For a DF diagram with a transform flow, translate into one with none.
– (transform and transaction flow) – Go to structure Chart.
7. Low level design concepts - pseudo code, Struct programming
– What is SP, what programming constructs does it require? 8. OO software concepts -
– What is the difference between inheritance and polymophism?
