system design - DSpace at CUSAT - Cochin University of Science ...

PROJECT REPORT Callipers – The Training Manager
to assess his/her trainer. All these details can be viewed and edited by the
administrator.
5.5 Logical Level System Design
Logical design covers the following:
Reviews the current physical system-its dataflow, file content etc.
Prepares input specifications-format, content and most of the input
functions. This includes determining the flow of the document form input
data source to the actual input locations.
Prepares edit, security and control specifications. This includes
specifying the rules for edit correction, back up procedures and the controls
that ensure processing and file integrity.
Specifies the implementation plan.
Prepares a logical design walkthrough to the information flow, output,
Input controls and implementation plan.
Reviews benefits, cost, target dates and system constraints.
5.6 Physical Level System Design
An application system physical design approach can be easily
understood by users and easily used by programmer analysts during
implementation. Both overall systems level and program level physical designs
are normally created from Data Flow Diagram (DFD) and Entity Relationship
Diagram (ERD) based logical designs, by separating processes and data stores by
time (such as daily vs. monthly, day vs. night), place (client or server, centralized
vs. distributed), online vs. batch, and manual vs. automated. Using a physical
design we are able to easily create detailed program level designs needed to
implement the system. The key point in the methodology is that users can
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