Amended Nov. 2007
Tony D.
- System Development, Methodologies and Modeling
Introduction to: the traditional systems develoment life cycle,
- modeling techniques,
- data flow diagrams,
- logical data structures,
- entity life histories
- System Development Lifecycles
Introduction to systems analysis and design;
- Traditional Life Cycle detailed;
- The waterfall model;
- Exploratory programming;
- Prototyping;
- 4GLs;
- Prototyping as an analysis tool;
- RAD;
and a Bibliography
- Data Flow Diagrams (DFDs)
DFD Principles;
an example;
(SSADM) DFD notations;
DFD levels
- Procedure Definitions - low level DFDs
Describing low-level processes, using:
- pseudocode (structured English),
- decision trees,
- decision tables,
- logic flowcharts
- Logical Data Structures (LDSs) - Entity-Relationship Modelling
Logical data structures are data models
An in-depth guide to entity modelling: entities, attributes relationships etc.
- Some LDSs - Entity Attribute Relationship diagrams
A number of different models describing a variety of student-selected systems
- Programs are Algorithms
An introduction to programs as sets of instructions
- Program Control Structures - flowcharts
Diagrams describing the the three, and only three,
control structures found in programs
- How a computer adds
Four diagrams illustrating the use of AND,
OR & NOT gates in digital addition
- Binary math
An introduction to Binary mathematics - looking at different number bases:
Hex, Octal, Decimal.
AND How a CPU uses bits (Add, Compare, Move) at the heart of the computer.
You are visitor number
Tony Drewry, BA Systems Analysis, MA Open & Distance Education
Sen. Lecturer, CEMS Faculty, UWE, Bristol.
[Faculty of Computing, Engineeering, & Mathematical Sciences
University of the West of England, Bristol, BS16 1QY.]
Room 3P15; Tel: +044 (0)117 3283166
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