Lesson 1: System Design Process

System Architecture Design Strategies (select here for table of contents)
1. System Design Process	2. GIS Software Technology	3. Software Performance	4. Server Software Performance
5. GIS Data Administration	6. Network Communications	7. Platform Performance	8. Information Security
9. GIS Product Architecture	10. Performance Management	11. City of Rome	12. System Implementation

The purpose of this lesson is to share a system design methodology that promotes successful deployment of geographic information system (GIS) technology. This system design methodology includes guidelines for identifying business requirements, making appropriate software selection, using properly configured data sources, and providing sufficient hardware to meet user productivity needs. This lesson focuses on system performance and scalability - building a GIS that will perform during peak operational loads.

Thinking about GIS

Much more can be said about business requirements analysis (GIS User Needs) and available software functionality - GIS business planning is not the focus of this course. Dr Roger Tomlinson (Father of GIS) provides an excellent book that shares a proven framework for comprehensive GIS planning called Thinking about GIS. Understanding the information products you want out of the GIS and identifying the software candidates you might use to produce these information products is a prerequisite for completing your system architecture design. The Planning for Building a GIS video series shares an overview of this business process analysis planning methodology.

Figure 1.1 System architecture design is an analytic process that generates IT hardware and network capacity requirements from specified peak business workflow performance needs.

Video1: System Design Process 24:54

Reference documentation

1. What is System Architecture Design
2. What is the System Design Process?
3. Building a GIS: Implementation strategy
4. Capacity planning terminology
5. GIS business planning
6. Monitor performance compliance

Video2: Capacity Planning Tool introduction 19:37

Reference documentation

1. GIS business planning

   Pre-design efforts

   CPT tab: Workflow Loads Analysis

   System Design Process

   CPT demo: User requirements analysis

   CPT demo: Network suitability analysis

   CPT demo: Platform architecture selection

   CPT demo: Software configuration

   CPT demo: Enterprise system design

Exercise 1: Use the Platform Capacity Calculator to identify the best platform selection

Your company has approved funding to purchase new hardware for your upcoming ArcGIS Server deployment. You are interested in purchasing a server with an entry-level ArcGIS Enterprise Advanced license. You will use the Platform Capacity Calculator to identify performance and capacity for the available server candidates.

Download the Arc19CapacityPlanning0201 CPT for use in the class exercises

Click here for Exercise 1 where you will perform the following tasks:

• Use performance metrics from your current operational environment to establish a performance baseline for your existing ArcGIS Server REST mapping services.
• Evaluate peak capacity for each of the offered bundle configurations.
• Evaluate the effect of user productivity on your peak concurrent user estimates.
• Finally, evaluate optional virtual server deployment options.

Best practice: Questions on SADSwiki content can be answered through the GeoNet Implementing GIS Architecture and Security forum.

System Architecture Design Strategies (select here for table of contents)
1. System Design Process	2. GIS Software Technology	3. Software Performance	4. Server Software Performance
5. GIS Data Administration	6. Network Communications	7. Platform Performance	8. Information Security
9. GIS Product Architecture	10. Performance Management	11. City of Rome	12. System Implementation

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System Design Strategies 26th Edition - An Esri ® Technical Reference Document • 2009 (final PDF release)