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Systems Design (Scope Of Design (Process Design (High level System Design,…
Systems Design
Scope Of Design
Input/Output Design
Input
Efficiency
Reliability
Timing
Accuracy
Usability
Cost
Menus
Form Filling
Command Language
Question and answer
Output
On Demand
Summary
Exception
Data Dumps
Archive
Efficiency
Reliability
Timing
Accuracy
Clarity
Useability
Relevance
Quality
Cost
Data Design
Normalisation
Code Design
Uniqueness
Explandibility
Stabiliy
Length
Faceted
Self Checking
Database Management Systems
hierachical
Network
Relational
Object Orientated
File Organisation
Serial
Sequential
Process Design
High level System Design
Stepwise Refinement
Top Down/Bottom Up
Programme Contructs
Sequence / Selection / Iteration
Detailed Programme Specification
Coupling and Cohesion
Unit component design
Object Orientated Design
Security and Control Design
Input Controls
Double Keying
Self checking codes
Repeating back user entry
Existence Checks
Range checks
Cross field validation
Output Controls
Control totals
Spot checks
Pre-numbering
Clerical Controls
Batch / form serial number
Batch counts / control totals
Hash totals
Data Controls
Data type
Length
Format
Value range
Mandatory
Default value
Visibility
Security and Audit
Physical
Locks
Barriers
Safes
Security Personnel
Backup and recovery
Logical
Access controls
Firewalls
Encryption
Anti-malware
Objectives
Functional
Data Maintence
Transactional Processes
Reports / Other Outputs
Non Functional
User friendly
Reliable
Secure
Accessible
Available
Capacity
Throughput
Responsive
Flexible
Scalable
Configurable
Portable
Design Characteristics
Maintainable
Well Documented
Modular
Extensible
Simple
Efficient
Reusable
Testable
Conformant
Compatible
Interoperable
Constraints
Project
Money
Timescales
Skills/Resources
Technical
Hardware
Software
Legacy Systems
Programming Language
Technical Standards
Organisational
Politics
Stakeholders
Standards
Legislation
Cultural
Quality of requirements