An Implementation of DeW

User-Interface to Register with the DeW Registry

By Saihong Song, Shanshan SongSep. 30, 2002

Introduction of Exception

Definition of Exception:The union of “error”, “exceptional case”,

“rare situation”, and “unusual event”. The entity that is raising an exception stops and waits for the completion of the exception processing.

Service and Exception Type of Exception

– Singular– Hierarchical

Introduction of Exception (cont…)

Singular Structure Hierarchical Structure

Database Design

E-R Diagram

Service

ExceptionHandler

ExceptionBelong to

has

parent

ID name

ID

name

type

priority

filename

context

n1

n m

1

1

Database Design (cont…)

Database SchemaServiceTbl

ExceptionTbl

ParentTbl

ID name

ID name type priority context filename serviceID

ID ParentID

User Interface Navigation-- Select or New a Service

User Interface Navigation-- Register an Exception

User Interface Navigation-- Delete an Exception

User Interface Navigation-- Delete an Exception (cont…)

User Interface Navigation-- Update an Exception

User Interface Navigation-- Update an Exception (cont…)

Questions

Register manually or automatically? Web or Application?

Milestone

Oct.8 : Refine the UI design Oct.15: Fix the interface Nov.18: Finish implementation Dec.2: Finish testing with other modules and

submit a work report