Graphic image presenting two triangular schematic models used in activity theory to represent relationships within human activity systems. At left is single large equilateral triangle subdivided by internal diagonals connecting vertices, forming network of intersecting relationships. Upper vertex is labeled “Mediating Artifacts, Tools and Signs,” lower left vertex labeled “Rules,” lower right labeled “Division of Labour,” and central lower vertex labeled “Community.” Midpoint along left slanted edge is marked “Subject,” right slanted edge midpoint is “Object,” and circle adjoining right edge is labeled “Sense/Outcome → Meaning.” Diagonal and horizontal lines interconnect all points, creating internal hexagonal web structure. Caption beneath identifies this as “The Structure of a Human Activity System.”

Right side of diagram shows pair of interconnected triangular models, representing “Two Interacting Activity Systems as Minimal Model for 3rd Generation Activity Theory.” Each triangle mirrors structure of the first, with equivalent labeled vertices: “Mediating Artifacts,” “Rules,” “Community,” “Division of Labour,” “Subject,” and “Object.” Between two objects of adjacent triangles lies overlapping oval region shaded grey, labeled “Object 1,” “Object 2,” and “Object 3,” representing evolving shared object in interacting systems. Lines within triangles mirror those of left model, producing complex network indicating interaction between components of distinct but interconnected activity systems.

Graphic is drawn with thin black lines for structure, white background for clarity, and small yellow circles highlighting nodes labeled “Object.” Visual arrangement emphasizes systematic relationships rather than aesthetic detail, functioning as theoretical diagram for socio-cultural activity theory, showing mediation, community roles, division of labor, and shared evolving object of collaboration.

Vertical masonry surface fully covered with glazed ceramic relief elements depicts numerous solar-themed motifs arranged in dense grid-like pattern across multiple axes. Each relief unit exhibits individualized facial representation within a radiating corona, executed in varying chromatic palettes including yellow, orange, red, blue, green, white, and metallic shades. Radial extensions alternate between pointed triangular flares, rounded lobes, wavy outlines, and polygonal edges, creating heterogeneous stylistic variations within the overall collection. Some solar disks contain anthropomorphic features with distinct expressions, while others integrate abstracted geometric configurations or vegetal embellishments. The arrangement extends continuously across both the primary wall and adjacent staircase risers, maintaining uninterrupted visual field. Iron staircase with black vertical balusters and diagonal handrail intersects the composition diagonally, dividing the surface into upper and lower zones. Floor comprises rectilinear green ceramic tiles with orthogonal grid joints, forming geometric contrast against the organic radial patterns of the wall installation. Potted vegetation occupies lower right quadrant, introducing natural plant material adjacent to fabricated ceramic environment. Architectural framework includes white plaster surfaces bordered with decorative tile bands near the ceiling, each tile incorporating additional miniature solar faces or geometric inlays. Balustrade above the staircase landing employs black metal lattice design consistent with stair handrail. A human figure stands upright on tiled floor near stair base, positioned frontally with arms folded, wearing dark clothing and cap, providing anthropometric scale reference relative to wall installation dimensions. Overall configuration demonstrates site-specific integration of ceramic craftsmanship, architectural tiling, metalwork, and horticultural placement, producing a spatial environment characterized by multiplicity of solar iconography, chromatic saturation, and textural relief differentiation.