Archival Studies Tools

Browse all available archival studies tools.

Available tools

Annual Report Output Metrics Rollup Aggregator Roll up periodic output metrics such as quarterly accessions or reference counts into a count, total, mean, minimum and maximum for annual reporting.
Authority Control Name Form Normalizer (surname first) Invert a personal name into the inverted catalog form 'Surname, Forename(s)', treating common nobiliary particles as part of the surname; token order is a heuristic.
BagIt Profile Required Tag Presence Checker Check which bag-info metadata elements required by a BagIt profile are absent, using the case-insensitive element-name comparison required by RFC 8493 while preserving the requested spelling in the result.
Born-Digital Disk Image Size TB Aggregator Aggregate born-digital disk image accession sizes in terabytes into a count, storage total and mean image footprint.
Checksum Fixity Verification Pass-Fail Comparator Verify fixity by comparing expected and actual checksum strings after trimming surrounding whitespace and case-folding both values.
Country Code ISO 3166 Alpha-2 Validator Validate whether a normalized two-letter value is a currently assigned ISO 3166-1 alpha-2 country code. Reserved and user-assigned letter pairs are not accepted.
Crowdsourcing Review Consensus Agreement Percent Calculator Measure crowdsourced transcription consensus as the percentage of reviewer contributions that agree with the accepted reading.
Digitization Priority Score Calculator Compute a weighted digitization priority score as the weight-normalized sum of significance, condition-risk and demand scores on 0-100 scales.
Duplicate File Hash Set Deduplication Savings MB Calculator Quantify deduplication savings in megabytes and percent from the total accession size and the size remaining after hash-based duplicate removal.
EDTF Uncertain/Approximate Qualifier Decoder Split an Extended Date/Time Format value into its base value and trailing uncertainty qualifier (? uncertain, ~ approximate, % both).
Email Archive Message Count per Account Summator Sum per-account email message counts across an archived mailbox corpus and report the account total and mean messages per account.
Finding Aid URL Persistent Identifier Slug Generator Turn a finding aid title into a URL slug by accent-folding, lowercasing and replacing non-alphanumeric runs with hyphens, truncated on a word boundary.
Format Obsolescence Watchlist Risk Score Rater Rate preservation format obsolescence risk on a capped 0-100 scale (two points per year since release plus twenty for proprietary formats, twenty-five when emulation is required and fifteen when validation tooling is lacking) with low, moderate, high and critical tiers.
Handle URN Namespace Component Builder Assemble a Handle identifier from a numeric naming-authority prefix and local suffix, then percent-encode reserved characters in the hdl URI and resolver URL while preserving slash-delimited suffix components.
IIIF Image URL Parameter Sequence Formatter (v2) Assemble a canonical IIIF Image API 2.1 request URL, using the v2 default size keyword 'full' and percent-encoding special characters—including slashes—inside the image identifier.
Interview Timestamp hh:mm:ss to Seconds Converter Convert an oral history interview timestamp in hh:mm:ss notation into total elapsed seconds for playback and sync workflows.
ISO 8601 Date Interval Format Validator Validate a practical ISO 8601 interval subset of the form start/end. It checks Gregorian calendar dates (including leap years), clock and UTC-offset ranges, reduced-precision dates, and non-mixed calendar or week durations; it does not compare endpoint chronology.
Language Code ISO 639-2 Three-Letter Validator Validate assigned ISO 639-2 bibliographic and terminology codes, plus the qaa–qtz locally reserved range, and return the lowercase normalized form.
LCSH Subject Heading String Well-Formedness Checker Check an LCSH-style heading string for double-hyphen subdivision separators, capitalization of each segment and absence of stray dashes or padding.
Metadata Schema Crosswalk Field Match Finder (Dublin Core-EAD) Map a Dublin Core element to its customary EAD counterpart; institutional crosswalks vary, so correspondences follow common SAA-style practice.
Migration Cycle Interval Years by Format Class Lookup Look up an illustrative local review-cycle interval by broad format class. These fixed values are planning defaults, not a preservation standard or a substitute for format-risk monitoring; migration should follow an institution's documented policy and evidence.
OCR Confidence Score Below Threshold Word Counter Count OCR word confidence scores that fall below a review threshold and report the affected fraction of the transcribed words.
Oral History Abstract Word Limit Truncation Point Finder Locate the truncation point for an oral history abstract by counting its words and returning the leading portion that fits a word limit.
PDF/A Conformance Part Selector Select the lowest ISO 19005 conformance part (PDF/A-1, -2 or -3) that supports the declared document features such as transparency or non-PDF attachments.
Playback Obsolescence Tier Lookup Classify legacy audiovisual carrier formats into a five-step playback equipment obsolescence risk tier; published guidance varies, so tiers are a heuristic lookup.
Reference Statistics Monthly Question Count Trend Percent Calculator Compute the month-over-month percent trend in archival reference desk question counts with the absolute change and its direction.
Repository Code MARC Organization Identifier Format Checker Check a MARC organization code format of up to 16 letters, digits and single interior hyphens with at least one letter, preserving the original case.
Scanning Resolution PPI by Original Type Lookup Return a recommended scanning resolution in pixels per inch for common archival original types; published guidance varies, so values are a heuristic lookup.
TIFF File Size Estimate from Dimensions and Bit Depth Estimate TIFF storage as width × height × bits per sample × samples per pixel × pages, then multiply by an expected stored-size fraction (1 for uncompressed, 0.5 for half the uncompressed size). TIFF headers and metadata are not included.
Transcript Sync Offset Drift Seconds per Hour Estimator Estimate transcript-to-audio sync drift in seconds per hour from the change in alignment offset over the elapsed interview duration.
Transcription Progress Character Count Percent Calculator Report transcription progress as the percentage of transcribed characters relative to the total expected character count.
WARC File Compression Ratio Savings Percent Calculator Compute the storage compression ratio and percent savings for a WARC web archive from its uncompressed and compressed byte sizes.
Web Crawl Frequency by Site Change Rate Recommender Apply a local planning policy to recommend a web-archiving crawl cadence from the weekly page-change fraction: monthly below 0.5%, weekly below 2%, twice weekly below 8%, and daily otherwise. Adjust the thresholds to match collection risk and crawl budget before operational use.

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