Wegman’s Deli Kiosk

Senior Project Fall Semester Review

Wegman’s Deli Kiosk

Presented by the DELI-cious Developers

Daniel Larsen Tim Heard Jared Schutt Warren Shaw

Project OverviewTechnology Stack & Technology RationaleDesign Trade-OffsMethodology& Risk ManagementSystem TopologyHigh Level Server Design& Server Subsystem DesignHigh Level App Design& App Subsystem DesignTesting & MetricsCurrent ProgressQuestions & Comments

Agenda

Develop a Deli Kiosk Solution to be used in Wegman’s StoresOrders are generated by customers from a kioskGenerated orders are printed to the deliFilled orders are placed in designated pickup areaAll information is processed on a local server

GoalsMitigate long wait times and congestion in front of the Deli CounterIncrease customer satisfactionProvide long term solution that can be integrated into current technology

Project Overview

Technology Stack

Technology Rationale – Why Not…

Team has little knowledge of iOS development

Development Fees

Availability of technology for developers

No utilization of native tablet featuresCaching and device compatibility concerns

Difficult to control user experience from a kiosk

Forces dependencies on a server, increasing customization costs

Availability of technology for developers

Developers prefer not to program in java/android

Sponsor maintainability

Technology Rationale – Why…

Familiarity with development languages

Full control over User Experience

Wegman’s development parity

Stick to a full Microsoft Stack for compatibility and ease of use

Hardware availability

Team Foundation Service

Task / Req / Risk TrackingAutomatic BuildsOnline Code ViewingIntegrated Testing in BuildsGit IntegrationWork Item/Code Integration

Technology Rationale – Why…

Trade-offs of Initial Design

Dual App Single

App

Fat Client Thin

Client

Incremental Build ModelMethodology

5 Iterations5 Deliverables

Rationale Combines elements of waterfall and prototyping Product evolves over each iteration Testing occurs earlier in lifecycle Better customer visibility Continuous risk management Sponsor gets prototype faster than waterfall

Methodology

Requirements Elicitation Started at high level and refined to granular level Identifying Stakeholders and Goals User Scenarios and Use Cases Priority Management Prototyping

Methodology

Methodology multiple iterationsHorizontal slice vs Vertical slice

Excel sheet with all Risks, ordered by REMultiple domain expertsTFS Tasks

Risk Management

System Topology

High Level System Design - Server

Server Subsystem DesignDynamic Workflow

Server Subsystem Design

Server Subsystem Design

Server Subsystem DesignWorkflow Constraints

Client

Server

Where do we enforce workflow logic?

Server Subsystem DesignCreating an Order

Application Subsystem Design - Features

Duality

Admin & Customer app in

one

ReportAll orders, all transactions,

even employee efficiency

Monitor

Every order that is placed

Keep TrackOf your entire order with a

shopping cart

Print

Receipts for both customer and employee

Customize

Thickness & Tonnage for each

item

View

Promotions of special products

High Level Design - Application

Unit: 80% line coverage minimum

Usability: With the sponsor and actual end usersTime and Data Benchmarks

Stability Testing – Server running all the time

Continuous Builds & Unit Tests through TFS

Testing

Process MetricsTask Slippage

the number of tasks needed to be done vs the number that were actually done.Estimation accuracy

Overall estimation of tasks versus actual timeTechnical Metrics

Requirements VolatilityTesting Coverage

Functional: % of functions coveredClass: % of classes covered

Personal Metrics:Number of un-started tasksAverage time spent fixing problems

Metrics

70% finished with current iteration. Currently on task to finish this iterations functionality

Iteration planning for next iterations complete – Features become more complex as iterations continue

Printing works, Windows app made, WCF communications work

Current Progress

Printer Difficulties

IIS deployment

WCF Service setup

Windows App Development

TFS

Reflections

Questions?

AppendixServer : Printing Subsystem

AppendixServer Reporting Subsystem

AppendixServer: Data Management Subsystem Updating

AppendixServer : Order Retrieval Subsystem

AppendixServer : Order Processing Subsystem

AppendixServer : Admin Subsystem

AppendixServer : Authentication Subsystem

AppendixServer : Gateway Subsystem

AppendixKiosk : Order Management Subsystem

AppendixKiosk : Deli Item Subsystem

AppendixKiosk : Reporting Subsystem

AppendixKiosk : Cart Management Subsystem

AppendixKiosk : Admin Subsystem

AppendixKiosk : Splash Screen Subsystem

AppendixKiosk : Gateway Subsystem