ZogoTech Data Warehousing Process
ZogoTech's approach to data warehousing differs from
traditional data warehousing projects. ZogoTech's process has
proven to have:
- Far less costs
- Higher success rates
- Fewer unknowns
- Quicker turnarounds
Because ZogoTech has been focused exclusively on higher education
since its inception, we already have years of experience with
higher education requirements. Where most companies have to
spend hundreds of hours trying to gather requirements and create
reports, Estudias includes dozens of standard, customizable
reports that have been useful in other institutions.
Traditional Data Warehousing Projects
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ZogoTech
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Spend
a lot of time gathering requirements
- Form committees to look at
requirements
- Very hard (impossible?) to reach consensus
- No clear end
- Develop reports from scratch
- Months (Years?) before first report
- Big bang release
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Give people something
immediately, then customize
- Start with reports that are working at
other colleges / universities, customize
- Start small, show quick success
- Initially focus on technical issues
rather than requirements - clearly defined goals
- Weeks
- Grow organically
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Proprietary extraction tool
- Custom programming
- No clear end
- Months
- Rewrite if source system changes
- Data put into a black box, not
accessible
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Integrate with text file
downloads
- Clearly defined file formats
- Straightforward text file export or
ODBC connection
- Weeks
- Only change the generation of text files if
source system changes
- Access to data at all stages (part
of ZogoTech's Open Architecture)
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Proprietary
tools
- Locked in to one vendor
- Difficult to customize
- How manage security?
- Limited access to data (only through
vendor's tool)
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ZogoTech's Open Architecture -- Standard
Tools, Standard Protocols
- Microsoft SQL Server
- Microsoft Analysis Services
- Access through ODBC using SAS, SPSS, Microsoft
Access, Excel, etc.
- Open source where available
- Security can be tied to Windows
login IDs, groups (LDAP / Active Directory)
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Post-download data cleansing
- Custom tools to clean data after
download
- Reports generated from source system
(i.e. IPEDS) continue to be incorrect / inaccurate
- Lots of custom logic and consulting
hours
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Pre-download cleansing (where possible)
- Clean as much as possible on source
system
- Tools to empower institution to
identify/fix data errors on their own without expensive contractors
- Users get same, correct results
whether using data warehouse or source system
- Flexible, extensible tools to clean
remaining data using standard SQL statements
- See:
Improving Data Quality Using Estudias
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