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- March 28, 1991
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- d t S e a r c h
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- DESCRIPTION AND AUTHOR INFORMATION
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- This file includes sample descriptions which you may use to
- describe the dtSearch package.
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- For consistency and to help users locate the files, please use
- the name DTSRCH.EXE for the archive (or DTSRCH.ZIP, DTSRCH.PAK,
- etc. if you re-archive).
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- Keywords:
- ---------
- TEXT DATABASE, DOCUMENT SEARCH,
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- Category:
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- Database (Text Database)
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- Short Description:
- ------------------
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- dtSearch is a document search and retrieval program. Search
- features: boolean, proximity, phrase, and field/segment
- searches; search macros; wildcards in any position in a
- search term; search with an index, without an index, or both
- ways. Indexing: up to 15,000 documents per index; unlimited
- number of indexes. Other features: View retrieved documents
- in multiple overlapping windows; prepare and print search
- reports listing hits in context; cut, paste, edit, and print
- retrieved text. Works on ascii text files, WordPerfect 5.0
- and 5.1, and Multimate Advantage II files.
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- Registration Information:
- -------------------------
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- Registration costs $59.00. Registered users will receive: a
- printed copy of the manual, the latest version of dtSearch,
- technical support (by mail or CompuServe) for a year, and
- notices of updates or upgrades. Register through the Public
- (software) Library at: 1-800-242-4775. See ORDER.DTS for
- details.
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- dtSearch Program Description Page 1
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- Author/Publisher Information:
- -----------------------------
- David Thede
- DT Software, Inc.,
- 2102 Crystal Plaza Arcade, Suite 231
- Arlington, VA 22202
- CompuServe: 72607,3323
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- ASP Notice
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- DT Software, Inc. is a member of the Association of Shareware
- Professionals (ASP). ASP wants to make sure that the shareware
- principle works for you. If you are unable to resolve a
- shareware-related problem with an ASP member by contacting the
- member directly, ASP may be able to help. The ASP Ombudsman can
- help you resolve a dispute or problem with an ASP member, but
- does not supply technical support for members' products. Please
- write to the ASP Ombudsman at 545 Grover Road, Muskegon, MI 49442
- or send a CompuServe message via CompuServe Mail to ASP Ombudsman
- 70007,3536.
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- Long Description:
- -----------------
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- dtSearch is document search and retrieval program. It will
- perform both indexed and unindexed searches on collections of
- documents. A single search request can scan multiple
- directories, disk drives and document indexes. Search features
- supported include:
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- * Boolean logic (AND, OR, NOT)
- * Proximity searches (e.g., "apple" within 5 words of
- "pear") and phrase searches
- * Wildcards in any position in a search word (e.g.,
- "*c?pl*").
- * Segment searches (e.g., "@ADDRESS contains oak drive")
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- Using dtSearch, you can browse retrieved documents in
- overlapping windows that allow up to four documents to be viewed
- simultaneously. A notepad feature allows you to cut and paste
- text from retrieved documents into a notepad and to edit the
- notepad using a built-in text editor.
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- dtSearch reads DOS text files and documents created with
- WordPerfect versions 5.0 and 5.1 and Multimate Advantage II.
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- dtSearch Program Description Page 2
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- Background on Search Programs
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- Programs designed to perform searches on large collections
- of documents usually adopt one of three strategies:
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- * The "brute force" search, which reads every document in a
- collection in turn. This method requires little advance
- preparation, but is very slow.
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- * The "indexed" search. A document index is a file that
- contains information about where words occur in a collection
- of documents. Once you have created an index for a
- collection of documents, the index allows you to perform
- searches on those documents very quickly.
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- * A structured-database search. Instead of searching the full
- text of documents in the collection, this approach typically
- searches a small database that describes the documents. For
- example, a letters database might contain fields for the
- addressee, author, date, and subject of each letter.
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- A structured database allows you to perform very specific
- searches, such as a search for a letter written by a certain
- person (as opposed to a letter that merely contains the
- person's name). However, you must prepare the database by
- entering the information about each document.
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- dtSearch can combine all three types of search, and can do
- so in a single search request. You can specify that a search
- request will
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- * search all or selected documents in one or many
- directories,
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- * search one or many indexes, and
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- * search all of a document or only a defined segment of a
- document.
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- Another way search programs differ is in the level of
- precision they allow in search requests.
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- * "String" searches. The simplest -- and least precise --
- type of search is the search for a string of text. In this
- type of search, you enter a string such as "apple", and the
- program scans files looking for occurrences of the string.
- Because these programs do not break the text into words, a
- search for "apple" will also retrieve "applesauce" and
- "crabapple". Most DOS shell programs and many small
- utilities will perform this type of search.
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- dtSearch Program Description Page 3
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- * Simple word searches. Other programs, will search for
- specific words or combinations of words, such as "smith and
- jones" or "smith or (apple and pear)". Most of these
- programs also allow "wildcard" characters in search words.
- Following the convention used in DOS, the "*" usually
- matches any number of letters, and the "?" usually matches
- any single character. Thus, "apple*" would match "apple" or
- "applesauce", and "appl?" would match "apply" or "apple" but
- not "application".
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- The major limitation of these programs is that they
- cannot perform searches based on the context of a word in a
- document. This means that phrase searches (searches for two
- or more words in exact sequence) and proximity searches
- (searches for a word within a certain number of words of
- anther word) are impossible. Thus, you can search for
- "North" and "America", but not for "North America".
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- * Context searches. The most specific type of search
- specifies not only the words but their context. This allows
- you to search for phrases and for words that occur near
- other words. For example, you could search for documents
- containing "North America" within 10 words of "climate".
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- dtSearch performs both simple and context searches on indexed
- documents, unindexed documents, or a combination of indexed and
- unindexed documents. Search results will be the same regardless
- of whether the documents are indexed.
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- Limits and Requirements
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- 1. Program limits: Indexes
- * A single index may contain up to 15,000 documents
- * A single document may contain up to 60,000 words
- (about 300 double-spaced pages)
- * You can have up to 25 indexes in each index library,
- and you can have an unlimited number of index
- libraries.
- * You can have up to 25 macros or field definitions.
- * A noise word list can hold up to 200 words. Words
- after the 200th word in a list will be disregarded.
- * There is no limit on the number of words in an index or
- on the number of words starting with a particular
- letter.
- 2. Program limits: Searches
- * A single search request may involve up to 100 words,
- including wildcard matches.
- For example, if an index contained 75 words beginning
- with 's' and 75 words beginning with 't', then you
- could not search for "s* or t*"
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- dtSearch Program Description Page 4
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- * A search word can be up to 16 letters long.
- * A search request can be up to 180 characters long.
- * A search will automatically terminate after 500
- documents have been retrieved.
- 3. Program requirements:
- * dtSearch will run on an IBM-compatible computer with at
- least 384k of memory available, a hard disk, and DOS
- version 3.2 or higher.
- 4. Document Types
- dtSearch will read DOS Text files and documents created with
- WordPerfect versions 5.0 and 5.1 and Multimate Advantage II.
- Documents created by other word processors may contain
- formatting codes that dtSearch will not recognize.
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- In WordPerfect documents, dtSearch will recognize and
- display, footnotes, endnotes and outline numbering. As much
- as possible, dtSearch attempts to duplicate the formatting
- in the original document.
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- dtSearch Program Description Page 5
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