Mr. Lott has been involved in over 70 software development projects in a career that spans 30 years. He has worked in the capacity of internet strategist, software architect, project leader, DBA, programmer. Since 1993 he has been focused on data warehousing and the associated e-business architectures that make the right data available to the right people to support their business decision-making. Steven is a DZone MVB and is not an employee of DZone and has posted 141 posts at DZone. You can read more from them at their website. View Full User Profile

The Users Just Want "Search" -- What's So Hard?

09.03.2011
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Great article on "Search" from back in '08 in Forbes. "Why Google Isn't Enough", by Dan Woods. He's talking about "Enterprise Search": why in-house Google-style search is really hard and often unsatisfying.


Here's the cool quote.

enterprise search systems also index and navigate information that may reside in databases, content management systems and other structured or semi-structured repositories. The contents may include not only text documents, but also spreadsheets, presentations, XML documents and so on. Even text documents may include some amount of structure, perhaps stored in an XML format.

Everyone thinks (hopes) that the mere presence of data is sufficient. That fact that it's structured doesn't seem to influence their hopes.


The complication is simple -- and harsh. Many enterprise databases are really bad. Really, really epically bad. So bad as to be incomprehensible to a search engine.


Explanations

How many spreadsheets or reports "stand alone" as tidy, complete, usable documents?


Almost none.


You create a budget for a project. It seems clear enough. Then the project director wants to know if the labor costs are "burdened or unburdened". So the column labeled "cost" has to be further qualified. And "burdened" costs need to be detailed as to which -- exact -- overheads are included.


So a search engine might find your spreadsheet. If a person can't interpret the data, neither can a search engine.


Star Schema Nuance


You can build a clever star schema from source data. But what you find is that your sources have nuanced definitions. Each field isn't directly mappable because it includes one or more subtleties.

Customer name and address. Seems simple enough. But... is that mailing address or shipping address or billing address? Phone number. Seems simple. Fax, Voice, Mobile, Land-line, corporate switch-board, direct? Sigh. So much detail.


Of course the users "just want search".


Sadly, they've created data so subtle and nuanced that they can't have search.
References
Published at DZone with permission of Steven Lott, author and DZone MVB. (source)

(Note: Opinions expressed in this article and its replies are the opinions of their respective authors and not those of DZone, Inc.)

Comments

M Leslie replied on Sat, 2011/09/03 - 10:47am

IMHO the biggest problem with enterprise search is not variety of formats but different security on various documents. All documents dont have the same permission. Every search result is required to take user's role, department and many more things into consideration showing them the location of the document. There is no point showing them the results when they dont have access to the document.

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