Abstract
Islamic inscriptions constitute one of the most valuable sources for studying the history, art, architecture, religion, language, and cultural identity of Islamic societies. Beyond their decorative function, they preserve information on political authority, religious beliefs, artistic traditions, social structures, technological developments, and cultural interactions. Despite the richness of Iran’s inscriptional heritage, previous studies have generally concentrated on textual reading, historical interpretation, or artistic description, while comparatively little attention has been devoted to developing a comprehensive methodological framework for their documentation and analysis. This study aims to propose an integrated methodology for the classification, documentation, and interdisciplinary analysis of Islamic-era inscriptions in Iran.

Introduction
Islamic inscriptions occupy a distinctive position within the material culture of the Islamic world because they simultaneously function as historical documents, artistic compositions, architectural elements, and cultural symbols. Unlike ordinary written texts, inscriptions are inseparable from their physical environment; their meanings emerge through the interaction of text, calligraphy, materials, architectural setting, decorative design, and spatial organization.
Throughout the Islamic period in Iran, inscriptions appeared on monumental architecture, rock surfaces, funerary monuments, portable objects, wooden structures, ceramics, metalwork, and textiles. Their contents include Qur'anic verses, prophetic traditions, prayers, royal decrees, endowment records, commemorative texts, poetic compositions, construction inscriptions, and craftsmen's signatures. Such diversity demonstrates that inscriptions fulfilled multiple religious, political, educational, social, artistic, and administrative functions.
Recent developments in archaeology, art history, conservation science, and digital heritage documentation have emphasized interdisciplinary approaches to epigraphy. International standards such as CIDOC CRM, CRMtex, and contemporary digital recording methods encourage standardized documentation capable of integrating textual, material, spatial, and historical information. Nevertheless, no comprehensive methodological model has yet been specifically developed for the systematic study of Islamic-era inscriptions in Iran.
Accordingly, this research proposes a unified methodological framework designed to improve documentation, facilitate comparative analysis, strengthen interdisciplinary research, and support future conservation and digital heritage projects.

Research Method
The study adopts a historical–analytical approach based primarily on documentary research, supported by comparative examination of representative Islamic inscriptions from different historical periods and regions of Iran. Rather than interpreting individual inscriptions, the research seeks to establish a general methodological framework applicable to a wide range of inscriptional materials.
The research was conducted in three stages. First, classical and contemporary scholarship on Islamic epigraphy, Islamic art, architecture, archaeology, conservation, and cultural heritage documentation was systematically reviewed in order to identify the principal analytical components employed in previous studies.
Second, representative examples of Iranian Islamic inscriptions—including architectural, funerary, portable, and rock inscriptions—were comparatively examined. The illustrations included in the article serve only as representative examples of the proposed classification system and are not intended as detailed case studies.
Finally, the analytical components identified in previous scholarship were reorganized into an integrated methodological model adapted to the characteristics of Iranian Islamic inscriptions. Overlapping categories were revised, duplicated variables eliminated, and documentation indicators standardized to facilitate future comparative research and heritage documentation.

Findings
The research demonstrates that the proposed methodological framework improves the documentation and interpretation of Islamic inscriptions through three complementary analytical stages.
The first stage classifies inscriptions according to their installation context into four principal categories: rock inscriptions, inscriptions on portable objects, architectural inscriptions, and funerary inscriptions. Installation context directly influences materials, dimensions, script, conservation requirements, and analytical methods, making it an appropriate starting point for documentation.
The second stage classifies inscriptions according to their dominant function. Documentary inscriptions primarily record historical information, construction activities, endowments, legal texts, official decrees, dates, and patrons. Rhetorical inscriptions primarily communicate religious, ideological, educational, aesthetic, and symbolic messages through the combined effects of textual content, calligraphy, architectural placement, decorative design, and visual composition. The study further demonstrates that many inscriptions simultaneously perform several functions; consequently, functional categories should be regarded as analytical tools rather than rigid classifications.
The third stage introduces a standardized documentation model based on ten principal analytical indicators: language, script, materials and fabrication techniques, dimensions and textual organization, colour and decorative characteristics, textual content, installation location, human agents (including patrons, architects, calligraphers, and craftsmen), chronology and signatures, and present conservation status. Together, these indicators establish a comprehensive documentation protocol capable of supporting historical interpretation, stylistic analysis, conservation planning, comparative research, and digital heritage databases.
The research also emphasizes that inscription analysis should extend beyond textual transcription. The meaning of an inscription results from the interaction of its textual content with calligraphy, architectural context, materials, spatial organization, visual composition, and historical environment. Consequently, interdisciplinary analysis provides a more comprehensive understanding than approaches limited to philological or historical interpretation alone.
Furthermore, the proposed framework possesses significant educational value by integrating concepts from epigraphy, archaeology, architecture, art history, conservation science, and heritage management. It therefore provides a practical methodological model for both university instruction and professional documentation projects.

Conclusion
Islamic inscriptions are multidimensional heritage documents that combine historical information, artistic expression, religious thought, architectural design, and material technology within a single cultural object. Their study therefore requires an analytical methodology capable of integrating textual, visual, spatial, historical, and conservation perspectives.
The methodological framework proposed in this study combines classification based on installation context and dominant function with a standardized system of analytical indicators. This integrated approach enhances documentation consistency, improves analytical precision, facilitates interdisciplinary comparison, and contributes to the standardization of Islamic epigraphic studies in Iran.
Beyond its academic value, the framework offers practical applications in cultural heritage documentation, conservation planning, museum cataloguing, digital humanities, university education, and the development of national inscription databases. Because it is grounded in internationally recognized documentation principles while being specifically adapted to the characteristics of Iranian Islamic inscriptions, it provides a practical reference for future research and heritage management.
Future research may further refine this framework through the integration of Geographic Information Systems (GIS), Historic Building Information Modeling (HBIM), three-dimensional recording technologies, artificial intelligence, and semantic cultural heritage databases, thereby expanding its application within digital heritage and ensuring more effective preservation and interpretation of Islamic inscriptions.